Evaluate or simplify the given expression.cos(2 cos-1 x)
A. -1
B. 2x2 - 1
C. 1
D. 2x2 + 1
Answer: B
Mathematics
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Decide whether or not the network is traversable.
A. Traversable B. Not traversable
Mathematics
Solve the problem. Given f(x) = 
and g(x) = 
, find g(x) - f(x).
A. 
B. 
C. 
D. 
Mathematics
Determine whether the equation is linear or nonlinear.26x - 
= 19
A. linear B. nonlinear
Mathematics
Solve.-z = -21
A. z = -21
B. z = 
C. z = - 
D. z = 21
Mathematics